[Swift Complier Environment Configuration] C/C++ Configuration

c_cpp_properties.js

"includePath": [
  // the include folder under your build directory
  "${workspaceFolder}/../build/Ninja-RelWithDebInfoAssert+swift-DebugAssert/swift-macosx-x86_64/include",
  "${workspaceFolder}/../build/Ninja-RelWithDebInfoAssert+swift-DebugAssert/llvm-macosx-x86_64/include/**",
  // the include folder for clang
  "${workspaceFolder}/../clang/include",
  // all the files in the project
  "${workspaceFolder}/**",
  // all files under the llvm include folder
  "${workspaceFolder}/../llvm/include/**",
  // the headers we just installed
  "/usr/local/include/**",
  "/usr/include/**",
],